true... I havn't done alot of low light stuff with my d700 using no flash. I did find the iso does start to show up in that type of lighting situation at iso 800 onwards but in saying that its only evident when viewing the image at 100%. The good thing is you can play with the noise reduction in post process and reduce it a bit.. I'm still learning more about my camera everyday which is good now I just need to focus on a particular type of photography and get good at it...